EXCLUSIVE: Another Star Trek legacy character is set to appear in Star Trek: Strange New Worlds Season 3. This is none other than Dr Roger Korby, who is set to be played by American actor Cillian O'Sullivan. The reveal of Korby's appearance in Season 3 would be no surprise to anyone paying attention through Season 2. Korby, in particular, his future with Nurse Chapel (Jess Bush), was the focus of a major story arc.